Envelope



July 16, 1929. CULQTTA 1.720.721

- ENVELOPE Fileu Oct. 20, 1926 2 Sheets-Sheet 1 F. CULOTTA July 16, 1929.

ENVELOPE Filed Oct 20, 1926 2 Sheets-Sheet Patented July .16, 1929.

PATENT OFFI-C FRANK CULOTTA, OI IELBOSE PARK, ILLIN OIS.

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Application fled October 20, 1926. Serial 110. 142,878.

My invention relates to envelopes of the type used for correspondence, and more articularly to the class of envelopes use by business firms in writing to dealers, customers and prospects, it belng my main object to use the envelope as a medium for advertising.

A further object of my invention is to so design the novel envelope that its exterior may impart an effect of privacy, yet once opened the advertising matter would be 1n evidence.

A still further object of the invention is to so construct the novel envelope that a quick movement to open the sam e will result in a full display of the advertislng matter and ready access to the. letter or other enclosure in the envelope.

A final but nevertheless important object of the invention is to design the novel envelope on very simple lines, making it easy to handle and inexpensive fi) manufacture.

With the above objects in view, and any others that may suggesct themselves from the specification and claims to follow, a better understanding of the invention may be gained by reference to the accompanying drawing, in which Figure 1 is a perspective view of the novel envelope, as closed and sealed;

Fig. 2 is a perspective view of the same before closing;

Fig. 3 is a plan view of the envelope developed, or in blank;

Fig.4 is a vertical section of Figure 1;

Fig. 5 is a section on the line 55 of Figure 4;

Fig. 6 is a view similar to Figure 2 of a modification; and

Fig. 7 is a view of the same, similar to Figure 3.

Referring specifically to Figures 1 and 5, the novel envelope is cut from a single sheet andcreased on the lines 10 to define, when folded in the directions of the arrows in Figure 2, a frontal section 11, a back sectionter; folded in upon the frontal section, and sealed in a lap-joint. The interior of the back section 12 is also printed with advertising matter, glued along the portions 12 and 12", folded in upon the already sealed wing assembly, and sealed to the latter opposite the glued sections 12 and 12".

The to flap 15 is gummed on its inner surface, t en foldedidownin dried stateupon the already assembled wings 13 and 1 1 and the back section 12, and the combination passed with its end through a perforating machine, the effect thereof being indicated at 16. Or, the perforations may be made when the blank is cut, as indicated in Figure 3.

When the envelope is received from the mill by the sender, it bears no evidence of advertlsing matter; and when a letter has been written it is inserted into the envelope by opening the top flap 15 and then sealing the latter. When the letter reaches its destination, the recipient tears off the end of the envelope along the line of perforations. This act severs all the plies, affording immediate aocess to the letter inside and allowing the back section 12 to swing away and fully expose the advertisin matter on the inner surface thereof as well as that on the folded wings 13 and 14.

In the form of envelope described above, the end, which is relatively narrow, is for this reason torn off, quickly, affording a more ready access to the letter. Where quick access is not essential, I prefer to use the modification of Figures 6 and 7, which 0 ens along the longer side of the envelope, a though constructed on the same principle as the envelope first described. While it may take slightl longer to tear the longer strip in the modi cation, this type of envelope has the advantage of a wider opening for the insertion or removal of the contents. 1 am therefore illustratin both forms of the envelope, in order to s ow the adaptability of my invention to either type.

An envelope is thus had which itself bears the advertising matter, without sacrificing useful space. The advertising matter being inside is concealed during transit, and the letter therefore retains its air of privacy. By the combining and joint perforation of the assembled plies, the letter may be neatly opened without the use of shears or other implements, the contents readily reached 'no securing tabs,

and the advertising matter incidentally observed. \Vhile the sides of the back section 12 are not sealed to the balance of the envelope, and access is possible to the interior surfaces which bear the advertising matter, in the event that an unauthorized person shows familiarity or curiosity, access is not open to the letter or other private contents of the envelope, since the ends of the pocket therefor are sealed at the mill by the gluing of the sections 12 and 12 as described. Being of one piece the novel envelope requires but little labor to cut and print, is easy to handle and use, requires I fasteners or other devices apt to get caught or loosened during handling or in the mails, and occasions no extra expense or change in methods of conducting correspondence. The envelope therefore constitutes an eflicient medium for advertising matter intended for those receiving private mail.

I claim An envelope having a frontal section, lateral wings formed thereon and folded rear- -wardly upon the same, a rectangular back section equal in size to and folded'from the bottom of the frontal section upon said wings and sealed to the latter at the top and bottom only, and a gummed closing flap extending from the top of the frontal section adapted to fold upon and be sealed to the top of the back section, said flap and assembly receiving a common line of perforations whereby the assembly will be laid open to expose the inner faces of the several parts when the envelope is opened by tearing along the line of said perforations. v

In testimony whereof I aflix my signature.

- FRANK CULOTTA. 

